EVERYDAY SCIENCE

Detailed explanation-1: -C) In Rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll a, d and phycoerythrin.

Detailed explanation-2: -Phycoerythrin is a major light-harvesting pigment that is found in red algae and cyanobacteria. It is used as a fluorescent probe and analytical reagent. Visually, the phycoerythrins appear red.

Detailed explanation-3: -Rhodophyceae. Hint: The members of Rhodophyceae are also known as red algae because of the predominance of the red pigment r-phycoerythrin in their bodies. Apart from this, many other major pigments are found in them.

Detailed explanation-4: -Phycoerythrin (PE) is a photosensitive red pigment from phycobiliprotein family predominantly present in the red algae. The concentration of PE depends on photon flux density (PFD) and the quality of light absorbed by the algae tissue.

Detailed explanation-5: -Phycoerythrin is a red protein pigment that located in red algae and cryptophytes (Wehrmeyer, 1983).